Double-glazed window



Feb. 17, 1931. c, TI 1,792,550

DOUBLE GLAZED WINDOW Filed Aug. 3, 1928 2 Sheets-Sheet l INVENTOR Feb. 17, 1931. c, T- r 1,792,550

DOUBLE GLAZED WINDOW Filed Aug. s, 1928 2 SheetQ-Sheet 2 11 INVENTOR C'iza rjesl Phzz Patent ed Feb. 17, 1931 "UNITED STATES PATENT OFFICE" CHARLES L. PETTIT, OF BROOKLYN, NEW YORK, ASSIGNOR TO DE PET'I' CLEMENT CORPORATION, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK DOUBLE-GLAZED 'WIN'DOW Application filed August 3, 1828. I Serial No. 287,302.

This invention relates particularly to window structures of the metal frame and sash type and special objects of the invention are to provide a double glazed construction for such windows in which both the inner and readily replaced whenever required.

The foregoing and other desirable objects are attained in this invention by certain novel features of construction, combination and relations of parts as fully disclosed and claimed herein.

The drawings accompanyingand forming part of this specification are illustrative of one of the practical commercial embodiments of the invention, it being understood however that the structure may vary without departure from the broad sco e and true spirit of the invention as descri d and particularly claimed.

Fig. '1 is a broken perspective view of the sash and frame construction; Fig. 2 is a broken enlarged View of the sash structure looking in the direction of the arrow 2 in Fig. 1; Figs. 3 and 4 are horizontal sectional views on substantially the plane of lines 33 and 4=-4 of Fig. 2; Fig. 5 is a broken separated view of the sash and glass retaining strips; Fig. 6 is a broken horizontal section of a. casement window construction; Fig. 7 is a similar view of the sash structure incorporated in two side hung casement sections forming a mullion.

In the particular form of the invention herein disclosed, the frame 9 of the sash has an inwardly extending flange 10 at the outside and is flangeless at the inside as at 11 to receive the glass.

The outside glass 12 which for protective purposes inay be wire glass or the like, seals against the flange 10 and the inside glass 13, which may be lead glass or' the like is secured by strips 14, 15. Spacing strips 16, shown as of hollow channel cross-section, interposed between the two panes of the glass, hold them separated in predetermined spaced relation.

The strips 15 are shown as flat pieces secured by'screws 17 to the inside faces of the window frame and as extending inwardly sufliciently to fully overlap the edges of the inner glass. The securin strips 14 on the other hand have angular y extending portions 18 fitting inside the sash and secured against the inside face of the sash frame b screws 19, entered from the outside, throug the web of the frame into tabs or lug extensions 20, which project through notches 21 beneath the intermediate securing strip 16. The latter are shown secured by screws 22 to the inside of the sash frame.

The narrow angle strips 14 which fit inside the sash frame and therefore can swing through the sash opening in the window frame are placed on the lower outwardly swinging portion of the sash, below the hinges or pivots 23 in Fig. 1, while the flat wider strips 15 which overlie the inside face of the frame are placed on the upper inwardly swinging portion of the sash, above the pivots, Fig.:.,1.

The upper inwardly swinging portion of the sash has a flange or face'24 as shown in Fig. 3 to match an overstanding outside flange 25 on the casing or window frame 26, with a laterally projecting flange 27 to meet the inside flange or face 28 on the casing frame.

In a reverse way, the lower outwardly swinging portion of the sash has a laterally projecting flange 29 to meet the outside flange or face 30 on the case of the frame and an inside flange or face 31 to meet an inside flange 32 on the casing frame. To finish off the lower inside half of the casing, where the narrower securing strip 14 is used, to match the wider securing strip 15 on the upper part of the sash, a fimshing strip 33 is shown secured by screws 34 to the lower portion of the casing, flush, when the window is closed, with the inside face of the strip 14, Fig. 4:.

Putty, felt or other suitable packing or sealing material may be used about the edges of the outer and inner glass as indicated at 35, 36. In glazing the window, the outside glass is first set in the frame against the outside flange 10 and secured in this-relation by the intermediate securing strip 16. The inside glass is then set in the frame against 5 against 1 the intermediate strip and secured in this position by the inside fastening strips 14, 15, the latter being secured over the inside face of the frame and the former having their angular portions 18 entered in the frame and the lug extensions 20 passed through the notches 21 of the intermediate strip and secured by the screws 19 entered through the outside of the frame. The two glasses may be taken out by a reversal of this order of procedure so that repair or replacement is a simple matter. The space between the two glasses is sealed air tight or practically so, which eliminates condensation, dust, etc., and enables the air space to act as an effective thermal insulation.

The invention is adapted to vertically swinging windows as well as to windows of the horizontally swinging type first disclosed, as will be evident from Fig. 6 where a double glazed casement window construction is illustrated having vertical hinges as indicated at 3?.

In Fig. '1" the double glazing is shown applied to side hung casement sections forming a niullion, the frame of one of the easement sections being indicated at 26 and generally similar to the easement frame structure 26 except that it has the inside flange omitted at 38 to receive the inside angular strip 14.

From the foregoing, it will be apparent that the double glazed structure is adapted to vertically as well as to horizontally pivoted sash and to side hung sash in various relations. Also it will be seen that the structure is relatively simple, inexpensive, strong and practical in every way and can be readily assembled or taken down as may be required.

What is claimed is:

1. A double glazed window, comprising a sash structure having a retaining flange. a glass in the sash and supported by said flange, av ii ermediate retainer in the sash holdin d glass in supported relation nining flange, means for deta-zmab g said intermediate retainer to the sash. in. its glass holding relation. a. secoii d glass in the frame and bearing against said, intermediate retainer, retaining means for securii said second glass in position d intermediate retainer and means V FiGCll an outer retaining strip overlying the second glazing, said outer retaining strip consisting of an angular section having one side of the same extending into the frame and a flat section overlying the face of the frame.

3. Double glazed sash, comprising a frame having an inwardly extending retaining flange at one face and open at the opposite face to receive the glazing, inside and outside glass set in said frame, an intermediate retaining strip between the inside and outside glass and holding the outside glass against the retaining flange, a retaining strip holding the inside glass against the intermediate retaining strip, sealing material about the edges of the glass and held in place by said retaining strips, the inside retaining strip being of angular cross-section and fitting within the open side of the frame with portions extending beneath the intermediate retaining strip and independent fastening means for the intermediate and inside retaining strips.

4. Double glazed sash, comprising a frame having an inwardly extending retaining flange at one face and open at the opposite face to receive the glazing, inside and outside glass set in said frame, an intermediate retaining strip between the inside and out side glass and holding the outside glass against the retaining flange, a retaining strip holding the inside glass against the intermediate retaining strip, sealing material about the edges of the glass and held in place by said retaining strips, the inside retaini strip having a flat section secured agaii the inside face of the frame and an angular section extending into the frame to the intermediate securing strip.

5. Double glazed metal sash. compi a metal frame having an integral flange'at the outside and open at tn to receive the glass, an outside glam the frame against the out. flange. an intermediate retail'iing strip cured inside the frame against the inner portion of said outside glass, an insid set in the frame against the intermedia taining strip, a. retaining strip engaged u. the inside edge portion of the inner and forming a retaining flange at the face of the frame, said inside retaining having an angularly extending flange 1n jerting inside the frame beyond the edge of the inner glass and beneath the intermediate retaining strip and fastenings entered fron'; outside the frame into engagement with said projecting portions. 7

In testimony whereof I aiiix my signature. CHARLES L. rnrrir. -JJ 

